Which 225's are giving you problems? The NPTs or another brand? I'm assuming the NPTs.
My experience is with a 22" Adams & Bennett (Midway) 1:14" barrel. It shoots sub-MOA with Sierra GameKings and Re-15 powder. (Even tighter with Re-12, but Alliant doesn't sell it anymore.) In short, I've had EXCELLENT experience with those 225 SGKs.
